DS1830AU+

PMIC (Power Management IC) supervisors are special types of integrated circuits meant to ensure the proper functioning of a system in case of errors. Working as an additional layer between the chip and the board, generally, PMIC supervisors are responsible for monitoring the status of the system and triggering an interruption when a potential for error is detected.The DS1830AU+ is an advanced version of the traditional PMIC supervisors, manufactured by Maxim Integrated. This three-terminal supervisor device features an accurate voltage monitor, active-low RESET output and a state-of-the-art design that can fit in tight spaces. The main function of the DS1830AU+ is to keep the system in a stable state, even when there are fluctuations in the supply voltage.

Application Field
The DS1830AU+ PMIC supervisor is mainly used in applications related to power-sensitivity and accuracy, such as embedded security systems, industrial automation, robotics, medical equipment, home appliances, and digital media players. Maxim Integrated provides the DS1830AU+ with a wide range of voltage set points. Capable of supervising supply voltages up to 4.995V, the DS1830AU+ maintains an accurate and reliable operation throughout the entire life of the system. Not only does the DS1830AU+ provide a maximum supply voltage of 4.995V, its accurate and precise start-up and reset conditions make it a suitable choice for applications where reliability is of utmost importance. By utilizing a high-accuracy voltage supervisor and its on-chip reset delay circuit, the DS1830AU+ is able to provide precise and accurate system reset under most circumstances.

Working Principle
The DS1830AU+ utilizes a band-gap voltage reference and a precise voltage comparator to monitor the voltage of the system. The supervisor looks for a preset voltage level and compares it to the specified set points. If the set point is surpassed, the supervisor will signal a reset to take place. The power-on reset signal is generated in two parts. First, the RESET signal is asserted low and then the delay circuit begins to count the elapsed reset time until the desired reset interval is reached. The DS1830AU+ then deasserts the RESET signal and the system resumes normal operation. The device also features an active-low RESET output for system reset during power-up, power-down, and brown-out conditions. The RESET signal can be used to generate a reset pulse of various widths. When a brown-out condition is detected, the RESET signal is driven low and a reset pulse is generated.

The DS1830AU+ is an extremely versatile PMIC supervisor meant to ensure the proper functionality of embedded systems, regardless of voltage fluctuations. With its wide operating voltage range, wide temperature range, and high accuracy, this PMIC supervisor makes it ideal for applications that require precise and reliable power regulation.